I want to contribute this post to the forum on process to get PCC from India (Ahmedabad or may be few others PSK). For most of applications submitted in passport office receive the PCC certificate by the next day depends on their CID check is clear during Passport issuance/ clearance in other case;
You need letter/email or any document that says you need PCC for immigration.
Basically, they need first page and last page of passport and letter mentioning requirement of PCC. The whole process will take nearly 1-1.5 months.
1) Take appointment (take early morning if possible, there are lots of rush after 11 or 12). Mine was Ahmedabad PSK.
2) Then you will get SMS for Police Enquiry. Better keep in touch with the police station of area. Normally it will take 7-10 days.
3) Once your Enquiry will be done, it will take nearly 2-3 weeks to complete your process. You will be notify by SMS once again to collect your passport from PSK.
The PP form is asked and for verification it goes to central Passport -> CID office -> local police station -> central CID office -> Passport office. The enitre procedure takes close to 2 months which crosses the timelines given by CO. It can be extended but u will be always worried about your PCC certificate.